Nearly all commercial oxygen is obtained ________.

Name: Nearly all commercial oxygen is obtained ________.
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Commercial oxygen is primarily obtained by separating it from air through a process called cryogenic distillation, which involves cooling and compressing air to separate the gases. Other methods listed (B-E) are used to produce oxygen on a smaller scale or for specific industrial applications but are not used commercially on a large scale.

Nearly All Commercial Oxygen Is Obtained ________